Improvement in the manufacture of semolina and flour



FAI BUCH HGLZ. 3 Sheets-55mm` 2.

` FlourMiu. NO. 108,103. Patented Orff. 11,1870.

. Witnesses:

N. PETERS. Pmwuxhwamn wawnsmmjgh.

aan ,sana

strut utilita aimeraient-No. 10a-ms, dated oct0ber1'1 .1s7o.

- INI-'PRVEMENT IN THE- MANUFAQTURE oF sEM-oLiNA hun F'LouR.

The 'Schedule referred to in these Lettera Patent and making p'art of the saine .To 4all whom, 'it 'may concern.-

Be it known 'that I, GUsrrAv Anonrnjucrrnonz, of Itegents Park, London, inthe count-'yet l\[iddle sex, England, have invented new and improved M achiueryfor Manufacturing Semoliha and Flour, and Ido hereby declare that the following is a `full,

clear, and exact description of 4the same, referenceV being had to the acccm'panying drawing forming a partot' this specification.

The Vobject of this invention is to convert' grain'by a kind offshearing actiou'into scmolina or int-'o our. lhis I effect bythe use of' au arrangement of machinery, wherein the grai-n'is passed between'cut'tingsurfaces'somewhat resembling iu arrangement the upper and lower stones of flour-mills, the runnerhowever,l taking by preference the-placent" the bed or lower stone.

i In the .accompanying drawing-4 N Figure l` is-'a sectionalel'evation of the improved,

mill;

AFigureii'is an elevation taken'T at right angles vto fig. 1 and Figure 3 is a plan or face view of the runner.

The cutting-surfaces are contained in a circular box, A, of cast-iron, supported at a suit/able elevation on foul-,pillars B B', secured to a bed-plate.

' G isan'arohed bearing piece for receiving the end of a central shaft, D, which. projects up through the circiar box A, audcarries at its upper cud the run- -uer g The cover A of thebox is tted on its-under side ,with cuttingfsurfaces, formed and arranged in manner similar to the acting surface of the runner.

The bottom of the box is cast with a bearing vfor the shaft D to work in.

' 4The runner E consists ci a disk, cast with a'recessed face and a hollow boss, E' to receive the central shaft to which it is keyed. The recessed face of Vthis disk` (see iig. 3) `is fitted -with concentric rings of steel'oriron, having ontheir face tangential or di- `agonalribsand furrows, forming cutting-edges of any suitable section.

rllhe ribs of the innermost ring a will by preference, show in cross-section a figure like ratchet-teeth, deepening-gradually from the boss outward.

'lhe chief. annular cutting-surfaces 1J b are formed of-steel', and put together in segments, and their edges are beveledto allow of their being held in lplace by au under-cut lip, or flange on the edge of v ring I prefer to form with i'nr'rows, that will provide receptacles for the semoliua: as it is out by the ribs,

and act as channels for the discharging it n ucrushcd from the mill.4 lhc disk, thus 4formed and iitted, is inclosed iu the case A, and runs freely therein. f

Over this disk I apply the cover Alot1 the box, whiclirco-ver forms a secondy disk, arid isi similarly providedwith a cnttingsi1ri`ace, and serves also to close the case. This disk is, like the runue1 ,sligl1tly con caved or holiowed on its face, the hollow deepening toward the center, and a large central opening or eye 1is provided, through Vwhich the grain is fed to the lnill.-

The ribs of ihe'operating surface of 'this disk 'are also arranged tangential] y or diagonally, but in areverse direction to those of the runneuand thus the meeting of the ribs of the upper and lower disks will causethe shearing action desiredl' The eye of the cover is-closed by a cap-piece, A2, which is made fast thereto, and a central opening is made in the top of the cap-piece to admit the bottom of the feed-hopper 1".v hullcd'grain onto the. top ofthe central-shaft D, which is enlarged and rounded, as shown, to facilitate the vdistribution of the grain on the runner.

Keyed to the lower end-of the shaft D is a spurwheel, G, which gears into a spur-wheel, H, mounted ou the horizontal shaft l'.

This shaft I is.monnted iii bearings carried by the castings ll which are made fast to the pillars B'.

The shaft I is fitted with fast and loose belt-pulleys, J, which receive a driving-bel for transmitting rotary motion through the gearing gust described to the machine.

To insure a'delicate adjustment of the runner E with respect to the fixed disk A1, au adjustable bearing-pin, D', is provided to receive the downward pressure o t' the runner-shaft D. vThis pin has a screw thread out on it,aud its lower end enters a hole in the Abed-plate.

Fitted to the screwed piu is a worm-wheel, d, which is free to turn thereon, but supports the. screwed pin, itself being supported by the bed-plate.

Into this worm-wheel gears a worm, d', mounted in bearings on the bed-plate. By turning this worm the bearing-pin through its worm-wheel is raised or' lowered, and wit-hit the upon it.

I would here remark that, in order to fit the segment pieces b b in place, it is necessary to provide runner-shaft D that bears wedge-shaped pieces, as shown at* i* fig. 3, which being This hopper discharges the'l ried between the fixed and running cutting-surfaces, where it will be rapidly reduced to semolina, by a kind of shearing operation, (the ribs of the two acting;` surfaces crossing each other' like the cutting-edges oi shears,) and the semolina, traveling along the furrows in the outer segment-pieces b', will be discharged ont.

ofthe mill through the spout A. i

In place ofribbcd and furrowed rings or segments, I may use steel blades7 set edgew'rse, and spaced out by ln'operly-sllaped filling pieces, as described in my patents dated November 23,' 1869,' and .numbered respectively 97,036 and 97,039.I In thisway I can producethe tangential arrangement of cuttingfedges, above explained.: lhcse blades may be held in place by being slidden over rebatcd ribs carried by the disks.

To convert 'grain into flour by this machine, it will only be necessary,r to form the cutting-surfaces with ner ribs than is required for the semolina-mill, but

Witnesses:

H. K. WHITE,

G6 Chancery Laue. W. WYNN,

24 Royal .Efrchange, London. 

